Description
The Trane RLY03865 Delay On Relay is an electrical switching component to control the timing of circuit activation after power is applied. It introduces a preset delay before closing the contact, allowing connected equipment to start in a controlled sequence rather than immediately energizing. In HVAC systems, it is used in air handlers, compressors, and control panels where staged startup is required across different electrical loads. The relay coordinates activation of fans, motors, and auxiliary circuits to maintain the orderly operation of system components during startup cycles.
